Survival time, percentage mortality, and feeding behavior were evaluated for adults of the weevil Myllocerus undecimpustulatus undatus Marshall (Coleoptera: Curculionidae) exposed to biopesticides by using a Petri dish plant-based bioassay system. Treatments consisted three registered entomopathogenic fungal formulations (BotaniGard ES, PFR-97 20% WDG, Met52 EC) biochemical (AzaMax, Entrust, Py...

Pesticides constitute a major anthropogenic addition to natural communities. In aquatic communities, a great majority of pesticide impacts are determined from singlespecies experiments conducted under laboratory conditions. Although this is an essential protocol to rapidly identify the direct impacts of pesticides on organisms, it prevents an assessment of direct and indirect pesticide effects ...

Purple loosestrife Jamee Hubbard has been studying Calico scale for three years in Dr. Dan Potter’s Turf and Ornamental Laboratory. In that time, she has made several interesting discoveries about this insect. First, unlike most other scales, oils do not seem to be very effective at controlling this pest. This is true of both the summer oils and dormant oils. Jamee said that oils will give some...

Application of insecticide at a reduced rate with a cucurbitacin-based feeding stimulant is a viable alternative to a broadcast insecticide application for control of adult western corn rootworms, Diabrotica virgifera virgifera, LeConte. Because of the small amount of material applied, it is conceivable that a high density of beetles could consume all of the spray residue before economic contro...

Pesticides constitute a major anthropogenic addition to natural communities. In aquatic communities, a great majority of pesticide impacts are determined from singlespecies experiments conducted under laboratory conditions. Although this is an essential protocol to rapidly identify the direct impacts of pesticides on organisms, it prevents an assessment of direct and indirect pesticide effects ...

Kinetics of hydrolysis of acetylcholine and acetylthiocholine by two types of acetylcholinesterase and butyrylcholinesterase inhibited by 13 new inhibitors (5 carbamates and 8 carbazates--hydrazinium derivatives) was measured in vitro in a batch reactor at 25 degrees C, pH 8, ionic strength 0.11 M and enzyme activity 3.5 U by four nondependent analytical methods. Sevin, rivastigmin (Exelon) and...

∗Mariacristina De Nardi: UCL, Federal Reserve Bank of Chicago, IFS, and NBER, [email protected]. Fang Yang: Louisiana State University, [email protected]. De Nardi acknowledges support from the ERC, Grant 614328 “Savings and Risks,” and from the ESRC through the Centre for Macroeconomics. We thank Francesco Caselli, Helen Koshy, Ananth Seshadri, Gianluca Violante, Sevin Yeltekin, and several partic...